Add Docker scripts and validation tests for Zen MCP Server

- Created build.sh script for building the Docker image with environment variable checks.
- Added deploy.sh script for deploying the Zen MCP Server with health checks and logging.
- Implemented healthcheck.py to verify server process, Python imports, log directory, and environment variables.
- Developed comprehensive tests for Docker configuration, environment validation, and integration with MCP.
- Included performance tests for Docker image size and startup time.
- Added validation script tests to ensure proper Docker and MCP setup.

docker/scripts/deploy.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+set -euo pipefail
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m'
+
+echo -e "${GREEN}=== Deploying Zen MCP Server ===${NC}"
+
+# Function to check if required environment variables are set
+check_env_vars() {
+    local required_vars=("GOOGLE_API_KEY" "OPENAI_API_KEY")
+    local missing_vars=()
+    
+    for var in "${required_vars[@]}"; do
+        if [[ -z "${!var:-}" ]]; then
+            missing_vars+=("$var")
+        fi
+    done
+    
+    if [[ ${#missing_vars[@]} -gt 0 ]]; then
+        echo -e "${RED}Error: Missing required environment variables:${NC}"
+        printf '  %s\n' "${missing_vars[@]}"
+        echo -e "${YELLOW}Please set these variables in your .env file${NC}"
+        exit 1
+    fi
+}
+
+# Load environment variables
+if [[ -f .env ]]; then
+    set -a
+    source .env
+    set +a
+    echo -e "${GREEN}✓ Environment variables loaded from .env${NC}"
+else
+    echo -e "${RED}Error: .env file not found${NC}"
+    echo -e "${YELLOW}Please copy .env.example to .env and configure your API keys${NC}"
+    exit 1
+fi
+
+# Check required environment variables
+check_env_vars
+
+# Create logs directory if it doesn't exist
+mkdir -p logs
+
+# Stop existing containers
+echo -e "${GREEN}Stopping existing containers...${NC}"
+docker-compose down
+
+# Start the services
+echo -e "${GREEN}Starting Zen MCP Server...${NC}"
+docker-compose up -d
+
+# Wait for health check
+echo -e "${GREEN}Waiting for service to be healthy...${NC}"
+timeout 60 bash -c 'while [[ "$(docker-compose ps -q zen-mcp | xargs docker inspect -f "{{.State.Health.Status}}")" != "healthy" ]]; do sleep 2; done' || {
+    echo -e "${RED}Service failed to become healthy${NC}"
+    echo -e "${YELLOW}Checking logs:${NC}"
+    docker-compose logs zen-mcp
+    exit 1
+}
+
+echo -e "${GREEN}✓ Zen MCP Server deployed successfully${NC}"
+echo -e "${GREEN}Service Status:${NC}"
+docker-compose ps
+
+echo -e "${GREEN}=== Deployment Complete ===${NC}"
+echo -e "${YELLOW}Useful commands:${NC}"
+echo -e "  View logs: ${GREEN}docker-compose logs -f zen-mcp${NC}"
+echo -e "  Stop service: ${GREEN}docker-compose down${NC}"
+echo -e "  Restart service: ${GREEN}docker-compose restart zen-mcp${NC}"